Thank you for a fast response!
Yes, that is exactly what I meant – even in “All languages” mode you can only see the categories that are in the same language as the post you are editing.
I disabled Term Assignment, Synchronization and Mapping Replication and I can confirm it works fine for me right now.
Nothing else that I need so far, but I won’t hesitate to ask again if anything comes up ??
Thanks a lot again for providing me with a quick solution.
Cheers!